Product description
Plants absorb phosphorus mainly in the form of H2PO4-. Therefore, the content of available phosphorus in the soil is a means of evaluating the soil's ability to supply phosphorus to crops, which has direct guidance for fertilization. This kit uses a molybdate-antimony mixed color reagent to reduce available phosphorus in the soil, turning the yellow molybdate-antimony into phosphomolybdenum blue, and the absorbance value at 700nm is proportional to the content of available phosphorus in the soil.
Additional Materials and Equipments Required
Spectrophotometer, 1mL glass cuvettes (optical path 1cm), pipettes, water bath pot, shaker.